feat: replace the cosmos-db.DB interface with core/store interface (#21450)

testutils/sims/runner.go

@@ -9,6 +9,7 @@ import (
 	dbm "github.com/cosmos/cosmos-db"
 	"github.com/stretchr/testify/require"
 
+	corestore "cosmossdk.io/core/store"
 	"cosmossdk.io/log"
 
 	"github.com/cosmos/cosmos-sdk/baseapp"
@@ -59,7 +60,7 @@ func Run[T SimulationApp](
 	t *testing.T,
 	appFactory func(
 		logger log.Logger,
-		db dbm.DB,
+		db corestore.KVStoreWithBatch,
 		traceStore io.Writer,
 		loadLatest bool,
 		appOpts servertypes.AppOptions,
@@ -85,7 +86,7 @@ func RunWithSeeds[T SimulationApp](
 	t *testing.T,
 	appFactory func(
 		logger log.Logger,
-		db dbm.DB,
+		db corestore.KVStoreWithBatch,
 		traceStore io.Writer,
 		loadLatest bool,
 		appOpts servertypes.AppOptions,
@@ -134,7 +135,7 @@ func RunWithSeeds[T SimulationApp](
 			err = simtestutil.CheckExportSimulation(app, tCfg, simParams)
 			require.NoError(t, err)
 			if tCfg.Commit {
-				simtestutil.PrintStats(testInstance.DB)
+				simtestutil.PrintStats(testInstance.DB.(*dbm.GoLevelDB))
 			}
 			for _, step := range postRunActions {
 				step(t, testInstance)
@@ -153,7 +154,7 @@ func RunWithSeeds[T SimulationApp](
 //   - ExecLogWriter: Captures block and operation data coming from the simulation
 type TestInstance[T SimulationApp] struct {
 	App           T
-	DB            dbm.DB
+	DB            corestore.KVStoreWithBatch
 	WorkDir       string
 	Cfg           simtypes.Config
 	AppLogger     log.Logger
@@ -168,7 +169,7 @@ type TestInstance[T SimulationApp] struct {
 func NewSimulationAppInstance[T SimulationApp](
 	t *testing.T,
 	tCfg simtypes.Config,
-	appFactory func(logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool, appOpts servertypes.AppOptions, baseAppOptions ...func(*baseapp.BaseApp)) T,
+	appFactory func(logger log.Logger, db corestore.KVStoreWithBatch, traceStore io.Writer, loadLatest bool, appOpts servertypes.AppOptions, baseAppOptions ...func(*baseapp.BaseApp)) T,
 ) TestInstance[T] {
 	t.Helper()
 	workDir := t.TempDir()